One-liner for running queries against CSV files with SQLite
I figured out how to run a SQL query directly against a CSV file using the sqlite3 command-line utility:
sqlite3 :memory: -cmd '.mode csv' -cmd '.import taxi.csv taxi' \
'SELECT passenger_count, COUNT(*), AVG(total_amount) FROM taxi GROUP BY passenger_count'
Source: One-liner for running queries against CSV files with SQLite
Looks handy.